ci: Merge testing actions

.github/workflows/testing.yml

@@ -0,0 +1,56 @@
+name: Combined Testing
+
+on:
+    push:
+        branches: [ "dev" ]
+    pull_request:
+        branches: [ "dev" ]
+        types: ["synchronize", "ready_for_review", "opened", "reopened"]
+
+jobs:
+    backend-test:
+        name: Run backend unit tests
+        if: "! github.event.pull_request.draft"
+        runs-on: [self-hosted, Linux, X64]
+        strategy:
+            matrix:
+                node-version: [22.x]
+        steps:
+            - uses: actions/checkout@v4
+            - name: Use Node.js ${{ matrix.node-version }}
+              uses: actions/setup-node@v4
+              with:
+                  node-version: ${{ matrix.node-version }}
+                  cache: 'npm'
+            - run: npm ci
+            - run: npm run test:unit -w backend
+        paths:
+            - 'backend/src/**.[jt]s'
+            - 'backend/tests/**.[jt]s'
+            - 'backend/vitest.config.ts'
+
+    frontend-test:
+        name: Run frontend unit tests
+        if: "! github.event.pull_request.draft"
+        runs-on: [self-hosted, Linux, X64]
+        strategy:
+            matrix:
+                node-version: [22.x]
+        steps:
+            - uses: actions/checkout@v4
+            - name: Use Node.js ${{ matrix.node-version }}
+              uses: actions/setup-node@v4
+              with:
+                  node-version: ${{ matrix.node-version }}
+                  cache: 'npm'
+            - run: npm ci
+            - run: npm run test:unit -w frontend
+        paths:
+            - 'frontend/src/**.[jt]s'
+            - 'frontend/src/**.vue'
+            - 'frontend/src/**.css'
+            - 'frontend/tests/**.[jt]s'
+            - 'frontend/tests/**.vue'
+            - 'frontend/tests/**.css'
+            - 'frontend/vitest.config.ts'
+            - 'frontend/playwright.config.ts'